LT1374CR-5#PBF Analog Devices Integrated Circuit (Other) In Stock
The LT1374CR-5#PBF is a current-mode fixed 5 V output buck (step-down) switching regulator capable of delivering 4.5 A output current from a 5 V to 25 V input range, with internal 500 kHz switching frequency for compact filter design. It is packaged in a 7-pin TO-263 surface-mount package and is lead-free for RoHS compliance. Available globally with stock for immediate shipping.
- Manufacturer
- Analog Devices
- Package
- Other
- Pin Count
- 7
- Lifecycle
- ACTIVE
- Datasheet
- LT1374CR-5#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.8950(MOQ 1)
- Temp Range
- ?°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 5 V output with 4.5 A maximum output current
- 5 V to 25 V wide input voltage range for versatile power system compatibility
- Current-mode PWM control with internal 500 kHz switching frequency
- TO-263-7 surface-mount package with exposed tab for enhanced thermal dissipation
- Lead-free (#PBF) RoHS-compliant construction
- Cycle-by-cycle current limiting for automatic overcurrent protection
Applications
The LT1374CR-5#PBF is used in point-of-load DC-DC converters for industrial equipment, embedded computing boards, and telecom shelf units where a regulated 5 V rail at up to 4.5 A must be generated from a higher-voltage bus of 8 V to 24 V. Its 500 kHz switching frequency allows small external inductors and capacitors, reducing the total solution size for board-mounted power supplies in servers, networking hardware, and factory automation controllers.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1462 |
| YTEOL | 9 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 25V |
| Input Voltage-Min | 5V |
| Input Voltage-Nom | 15V |
| JESD-30 Code | R-PSSO-G7 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 8.5A |
| Output Voltage-Max | 5.1V |
| Output Voltage-Min | 4.9V |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP7H,.55,50TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 2.5mA |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 560kHz |
| Technology | BIPOLAR |
| Temperature Grade | OTHER |
| Terminal Finish | Matte Tin (Sn) - with Nickel (Ni) barrier |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range and output current does LT1374CR-5#PBF support in a point-of-load application?
The LT1374CR-5#PBF accepts an input voltage of 5 V to 25 V and delivers a fixed 5 V output at up to 4.5 A. This makes it suitable for 12 V or 24 V industrial bus systems stepping down to a 5 V logic rail, handling loads from low-power sensors up to multi-core processor boards drawing near 4.5 A continuously.
How does the 500 kHz switching frequency of LT1374CR-5#PBF affect passive component sizing?
At 500 kHz, the inductor value required for a 5 V output at 4.5 A is typically in the range of 10 µH to 22 µH, and output capacitors can be reduced to 100 µF or less while maintaining acceptable ripple. This allows a compact PCB solution compared to 100 kHz regulators, which need 4 to 5 times larger inductors for the same ripple performance.
What thermal advantage does the TO-263-7 package provide for LT1374CR-5#PBF in high-current designs?
The TO-263-7 package includes an exposed metal tab that solders directly to the PCB copper pour, providing a low junction-to-board thermal path. At 4.5 A output current, this allows operation without an external heatsink in designs where adequate PCB copper area is provided, keeping junction temperature below 125°C at typical ambient temperatures up to 70°C.
Is LT1374CR-5#PBF suitable for replacing an older through-hole 5 V regulator in a board redesign?
Yes. The LT1374CR-5#PBF in TO-263-7 is the surface-mount equivalent of the TO-220-packaged version, supporting the same 5 V and 4.5 A ratings in a lower-profile SMT footprint. The #PBF suffix also confirms lead-free construction, meeting RoHS requirements that older through-hole regulators may not have complied with, simplifying transition to a compliant board redesign.
Related Guides
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
ADAQ7768-1 Design Guide for Precision Vibration and Dynamic Signal Measurement
Design ADAQ7768-1 precision data acquisition channels for vibration and dynamic sensing with the right bandwidth, reference, clock, and layout choices.
Jun 30, 2026
AD5204BRZ10 Design Guide for SPI-Controlled Gain and Offset Calibration
Design AD5204BRZ10 digital potentiometer calibration loops with bounded trim span, safe wiper current, clean SPI routing, and reliable startup codes.
Jun 30, 2026
Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
More from Analog Devices
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $10.5000 | $10.50 |
| 2+ | $7.8600 | $15.72 |
| 4+ | $5.8950 | $23.58 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”